Burner for incandescent vapor gas-lamps.



O. H. SMITH. BURNER FOR INOANDESGBNT VAPOR GAS LAMPS.

APPLICATION FILED JULY 8 1910.

Patented Mar.14,1911

2 SHEETSSHEET 1.

G. H. SMITH. BURNER FOE INGANDESGENT VAPOR GAS LAMPS.

APPLIOATION FILED JULY 8, 1910.

Patented Mar.14, 1911.

2 SHEETS-SHEET 2.

UNITED STATES PATENT OFFICE,

CHARLES HAZOR SMITH, or CHIQAGOJ ILLINOISQASSIGNOB 'ro THE 'MANTLE LAMI. comramr OF'AMERICA, or cHIcAGo, ILLINOIS, A CORPORATION or ILLINOIS.

ruImEn-ron INCANDESCENT varon Gas-LAMPS.

Application filed July 8, 1910. Serial No. 570,987.

Tool! whom it may concern:

Be it known that I, CHARLES HAZOR SMITH, a citizen of the United States, resid+ ing at Chicago, in the county of Cook and State of Illinois, have invented certain new bowl for holding the combustible fluid, a tubula-r wick, havingan air inlet passage extending up throughit, an air distributer or gasifier arranged at the upper end of said passage and-above the wick, and a mixing cone or retort arranged around the outside of the upper end of the wick and having a.

separate air supply from the-outside ofthe lamp, the opposing currents of-air furnished by the interior passage and-the-cone beingmixed with'the pure carbon vapor from the flame in the'upper.v portionof the coneand producing a. proper mixture for giving the desired glow within'the incandescent mantle supported above saidcone. 'It has been found that theproper percentage for this mixture of air andcarbon' vapor is from six to eight per cent. of the vapor and from ninety-four to ninety-twoper cent. of-air.

I have discovered that in order to produce the best results, that is, obtain the highest candle power,"it is necessary. to not. only maintain the proper mixture of vapor and air, but also to provide for an even distribution of this mixture as nearly as possible throughout the full height or length of the mantle. j

The object of the present invention is to obtain this result, namely form and main tain in the mantle a flame whichextends substantially throughout the height thereof and eflects' a-scom lete combustion of the gas so that there will be nolsmoke produced in the upper art of the mantle.

To this en my invention consists particularly in the peculiar and novel construction of the air-distributeror'gasifier which will be hereinafter fully described.

The invention also consists-in thecombinations of parts specified in the accompanying claims.

In the accompanying drawings: Figure-1 is a central vertical section of a. lamp equipped with my improved air distributer and also provided with a novel construction of combined mantle cap and burner cone. Fig. 2 is a'partial central section, on an enlarged scale, of the upper portion of the burner including the chimney gallery, the mixing cone, mantle, and air distributer.

Fig. 3 is a similar view with the mixing cone and mantle removed." Fig. 4; is a detailed view of the air distributer in side elevation, on an enlarged scale. Fig. 5 is an end view of the air distributer on an enlarged scale. Fig. 6 is a diagrammatic view illustrating the difference in contour of the fiame produced .with one ofthe old forms of perforated air distributers' as compared with that produced by my improved air dis:

Specification of etteisratent, P te ted Mar. 14, 1911.

tributer; and-Fig. 7 is a detailed view of the combined mantle cap and burner cone. The old form of air distributer or gasifier,

now generallyin use in this class of lamps,

has aflat imperforate top and a plurality of rows of staggered perforations in its vertic'a-l Wall. As illustrated in Fig. 6', there are usually three of these rows, the perforations A in the top and bottom rows being arranged in vertical alinenientfwithgone another, while the perforationsB in the inter mediate row are placed half way between the vertical planes of the erforationsin the other rows; which are a jacent thereto on either side. The consequence is that the flow of air rising from this form of distrib uter is'irregular and produces the jagged flame, shown in this figure etc. 7

Instead of the staggered perforations in. the vertical wall of the gasifier, I provide my device with parallel inclined slots, indi-g cated at 14 in Fig. 6, which are arranged,

preferably. at anangle of about-forty-five degrees. This'arrangement of slots emitsa uniform" volume ofair at every vertical line around the dist-ributer wi th the-result that the flame D- is perfectly regular and even, as

illustrated in this figure. Not only "do these oblique slots insure an even flow of the, mixture of air and vapor but they also cause said mixture to swirl in the mixingchamber I thereby .efi'ecting am'ore complete mixture,

I promoting combustion.

In addition tothe' slots in the vertical wall ofthe air distributer, I provide an opening bin the center of the to "which secondary air is ischarged, thereby supplying the oxygen necessary to maintain thereof through the flame .in the. extreme upper end of'the I have found that when the old style of gasi'fier, havingja'n imperforate to is used,the'flam e will not extend very big j becauseal-l theoxygen is soon consumed, the

consequence being that the flame would only -partiallyfill-a mantle. -cfl provfle the central opening in the top 'gasitier' with radial, preferably pered orbecome narrower, as they extend {outwardly from the, central openings. The

extremity, of each of these slots is preferably is pointed; The curyature ofthe slots is in the direction of the incline of the slots infthevertiealyvall of the gasifier. Consequently, the air discharged through said opening in I the top will swirl in the'same direction .as

that which-is emitted from the slots in the side, whe'rebya thorough'combustion is effectedin'the upper, as well as the lower, portionfofthe mantle. 'The.object in taperingthe radial slots, which extend from, the central opening in the top of the gasifier, is to 7 limit the discharge of air from the extremities of said slot, which are, of course, located l nearer the vertical annular wall of the gasifier to. thin streams, the main volume of air *being discharged nearthepcenter of the top whereit will mount higher in the. mantle be.- .315

fore it-will eomein contact with the burning gas rising from ,the mixing chamber of the cone), For the same reason, the central por- I tion ef the top of the gasifier,in which's'aidopening and tributary, slots are formed,'is

" 1- l raisedfabovefthe' plane of the rim thereof.-

' 1 The-topof theag'asifieris preferably formed "into the general shape of .a: truncated cone;

" b ut the sides' o f the cone 'are. made concave for the purpose of'forming a vacuum lie-- the 'raised'portion." A1 vacuum is caused here I by the eom-pletejconsumption 'of the oxygen Tin the gas which is. formed in the mixing :chamberof. the cone, by the flame in the vacu inniisa more perfect combustion eith'e lowerof theinantle. The-result of this gas at' thispoi-nt byfreasoh of said gas bei f -drawn inwardly and downwardly towar v i 5 the eenterjand-therebythoroughly mixed. 7 ings,',1; designatesfthelkbowl or receptacle for l 'ytheiliq-uid fuelg 2 the pedestal on which said -.}-i: bowl is,'mounted,fl3f and .4 the'in'ner gand; outer. wicktubes, .-land '5 the' -tubulanwick.

AnysuitabIeor' cOmmon form of perforated.

' burner'body 6;.niayhe;employed having a f; Rferring morefparticularly to the draw- 'Q detaehable"gallery 7; The latter has a'short' vertical {flange 'f 8; arranged concentrically within the same and spaced away from the upper end of the' ou'terj wick tube.' said nsions or slots which aretatween the rim at the base--and the rim' of;

candesc e'nt vapor 1 g slots in 1ts vertlca "ing ta ered outwardly": 8. An air-distribute! and flange 8 is removably mounted 'my combined mantle cap and burner cone 9 which has permanently secured thereto a looped mantle support 10 on which the ,mantlell' 'is confined. The 'eombined mantle cap and" vburner cone is preferably secured rigidly in place'on the flange 7 by means of pins or projections 12 extending. from the latter into engagement with angular'slots opening I on the l'owerl'ed e of said'cap.

The oblique s ots, i' the vertical-annular wall of the air distributer or-gasifier 13, are designated 14, the raised central portion of :theto'p ofasaidgasifier asx-15, and"the-con-.

cave sides of the truncatedcone-shaped top extremity of said slotsat 19, in Fig. 5. I cl'aim: l

-2. An airdistrib'uter andgasifier for incandescent vapor. gas lamps having an-opening in its top and curved tributary slots ex- 1..Au air distributer? and ga'sifier for in-' candescent vapor gas lamps having an open-' ing in its top and'curv'ed tributary slots extending radially from said opening. 7

thereof as 16. -'-The curved tributary slots of, the central opening17, in the part 15, are indicated at 18,and the tapered pointed 'candescent vapor as; lamps; aving oblique:

slots in its vertica mannular wall, a central. opening in itsftop, and tributary slots radif-at-ing from said oppnmg.

5. 'An air'distr uter andgasifier for in-' v as lamps havingoblique annular wall, a central opening its top; and-curved tributary slotsradiatin -"from said opening:- a

. candescent ;vapor gas'lamps aving .oblique slots in its-vertical annular wall, a 'cntral opening in "its top, and I curved tributary slot's'radiating from said opening and ex- "7; air distributer and I asifier' for; inicandeseent vaporfgas lamps aving oblique slots in ,itsvertical annular wall, an opening in 1 its top and tributary slots radiating tending'inthe same direction ass aldoblique slots in said-"annular wall.

from said. opening, said tributary slots'becandescent vapor slamps having oblique "slots in its" vertica annular wall, a central vopenin'gfinits top, and-curved tributary islots radiating from said opening and extending in the same direction as'saidoblique' gasifier .for iii-- pose specified.

-9. An air distributer and gasifier for in candescent vapor lamps having its top formedinto the general shape of a truncated cone, openings in the vertical annular wall thereof, an opening in ,the raised central portion of the top, and tributary slots radiating from said opening in the top, the sides ofsaid truncated cone being imperforate for the purpose specified.

10.'An air'distributer and gasifier for incandescent vapor gas lamps havingvits top formed into the general shape of a trun cated cone, oblique slots in the vertical annular Wall thereof, an opening in the raised central portion of the top, and curved tributary slots radiating from said opening and extending in the direction of said slots in the annular wall, all for the purposes specified.

In testimony whereof, I aflix my signature, in presence of two witnesses.

CHARLES HAZOR SMITH.

Witnesses: A. M. PARKINS, GEO. A. HUTCHINSON. 

